Dog handler



FIG. 1 is a perspective view taken from the right side of a dog handler showing my new design. The broken line showing for a dog is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a top view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a dog handler, as shown and described. 